public IActionResult JoinGame(JoinGameVM viewModel)
 {
     if (!ModelState.IsValid)
     {
         return(View(viewModel));
     }
     return(RedirectToAction(nameof(PlayController.ReadyWait)));
 }
        public IActionResult JoinGame()
        {
            var viewModel = new JoinGameVM();

            return(View(viewModel));
        }